Secondary Device for a Sensor and/or Information System and Sensor and/or Information System

ABSTRACT

A secondary device for a sensor and/or information system, including a display and a control unit, is proposed. Predetermined interpretation instructions are stored in the control unit. The control unit is configured to wirelessly receive a display instruction containing at least one interpretation information and at least one text information. The control unit is configured to generate a graphic presentation containing the text information using the stored interpretation instructions on the basis of the interpretation information of the display instruction, and to display the graphic presentation by means of the display. Furthermore, a sensor and/or information system and a method of operating a sensor and/or information system are proposed.

FIELD OF THE DISCLOSURE

The disclosure relates to a secondary device for a sensor and/orinformation system, to a sensor and/or information system, and to amethod of operating a sensor and/or information system.

BACKGROUND

Systems having portable sensors, such as barcode scanners, or portabledisplay units with screens are known. Such systems usually communicatewith a main device that controls the flow of data to and from thesensors.

Information that is relevant to the user in connection with an activityperformed by the user is usually displayed to the user in a graphicalmanner on the screen.

The problem is that the amount of data to be transmitted is usuallyrelatively large for graphical presentations, which is why more time isneeded for data transmission, which can cause time delays in thegraphical presentation. In addition, large amounts of data that aretransmitted wirelessly result in a high energy requirement, whichreduces the battery life of portable devices.

SUMMARY

Thus, there is a need to provide a secondary device for a sensor and/orinformation system, a sensor and/or information system, and a method ofoperating a sensor and/or information system permitting fast datatransmission.

The object is achieved according to the disclosure by a secondary devicefor a sensor and/or information system, including a display and acontrol unit. Predetermined interpretation instructions are stored inthe control unit. The control unit is configured to wirelessly receive adisplay instruction containing at least one interpretation informationand at least one text information. Furthermore, the control unit isconfigured to generate a graphic presentation containing the textinformation using the stored interpretation instructions on the basis ofthe interpretation information of the display instruction, and todisplay the graphic presentation by means of the display.

The disclosure is based on the basic idea that only the minimalinformation necessary for the generation of the graphic presentation istransmitted to the secondary device. The secondary device then generatesthe graphic presentation itself based on the predeterminedinterpretation instructions. Therefore, the graphic presentation itselfis not transmitted to the secondary device, but only the displayinstruction, which only contains the absolutely necessary informationfor generating the graphic presentation. This considerably reduces theamount of data to be transmitted and thus the time needed for datatransmission and data processing.

One aspect of the disclosure provides that the display instruction, inparticular the interpretation information, is free from independentrepresentations of graphical presentations. An “independentrepresentation” is here and in the following understood to be acompleted image or image section in any file format, for example anykind of pixel map, vector graphic etc. Accordingly, the displayinstruction does not contain any image information as such, but onlytext information that is interpreted by the secondary device to form animage based on the interpretation instructions. Since only text istransmitted, the amount of data to be transmitted is considerablyreduced compared to images to be transmitted, which is why the datatransmission and data processing also takes much less time.

According to a further embodiment of the disclosure, the control unit isan embedded system. Thus, no full operating system or the like runs onthe control unit of the secondary device; rather, the control unit isconfigured to process received signals and data according to fixed rulesor algorithms. Such embedded systems typically have much lower computingpower and much smaller storage capacities than smart devices such assmart phones, tablets or laptops. The method of generating the graphicpresentation described above is also suitable for such embedded systemsbecause of the small amounts of data to be transmitted.

According to one embodiment of the disclosure, the interpretationinstructions contain different templates which are each linked to anidentifier, the interpretation information containing at least oneidentifier of one of the templates. In particular, the templatescomprise instructions for the output of acoustic, optical and/or hapticsignals.

For example, the interpretation information thus comprises theinformation “template #13” or only “13”, which means that the templatewith the identifier “#13” is to be used for the graphic presentation ofthe message to be displayed.

Generally speaking, each template is a sample template comprising atleast one or more of the following information: number of rows and/orcolumns of the graphic presentation; separation of individual cells byseparating lines; font size in the individual cells; placement ofheadings; placement of the text to be displayed and/or graphical symbolsand the arrangement thereof.

In addition, the templates may contain instructions for the secondarydevice to emit an acoustic signal. For example, the acoustic signal is atone, a sequence of different tones or a melody. Information about theacoustic signal, such as a corresponding audio file in a suitable formator audio encoding, may be part of the template.

Alternatively or additionally, the templates may contain instructionsfor the secondary device to output an optical signal. In particular, theoptical signal is a light, in particular a flashing light in one or morecolors.

Alternatively or additionally, the templates may contain instructionsfor the secondary device to output a haptic signal. In particular, thehaptic signal is a vibration of the secondary device.

Therefore, the graphic presentation of the template is not transmittedto the secondary device, but only the identifier of the template to beused in the form of a text and/or in coded form, for example in the formof binary coding. This further reduces the amount of data to betransmitted.

Likewise, the acoustic, optical and/or haptic signals themselves are nottransmitted to the secondary device. Therefore, in the above example,the tone sequence is not transmitted as an audio file; rather, the tonesequence is already stored in the interpretation instructions in thesecondary device. The same applies accordingly to the optical and/orhaptic signals.

In particular, the at least one text information is or contains acharacter string. Here and in the following, a character string isunderstood to be a sequence of letters, numbers, spaces and/or specialcharacters. The character string represents the text to be graphicallydisplayed or part thereof. Examples of such character strings are “steeltubes” and “diameter: 15 cm”.

If necessary, the text information also includes one or more characterstring identifiers which indicate whether the respective characterstring is a heading or normal text to be displayed.

Preferably, the control unit is configured to receive the text signalvia a Bluetooth connection, in particular via a Bluetooth Low Energyconnection. Bluetooth, in particular Bluetooth Low Energy, enables datato be exchanged in an energy-efficient manner, thus increasing thebattery life at least of the secondary devices.

The object is further achieved, according to the disclosure, by a sensorand/or information system including a main device and a secondary deviceas described above. The main device is configured to generate and/orreceive at least one message to be displayed, which is to be displayedon the secondary device. The main device is further configured togenerate the display instruction including interpretation informationand text information based on the message, and to send the displayinstruction wirelessly to the secondary device.

In other words, the main device, which generally has considerably highercomputing power and/or a considerably larger memory than the secondarydevice, automatically selects an appropriate template suitable forpresenting the message to be displayed based on specific characteristicsof the message to be displayed.

The specific characteristics of the message to be displayed include atleast one or more of the following: number of characters, number ofwords, number of headings and/or number of lines.

However, the display instruction generated by the main device, moreprecisely the interpretation information, only includes the templateidentifier mentioned above rather than the template itself. Accordingly,only the template identifier needs to be transmitted from the maindevice to the secondary device, which considerably reduces the amount ofdata to be transmitted and thus the time needed for data transmissionand data processing.

The templates are stored on the secondary device along with uniqueidentifiers as interpretation instructions before the sensor and/orinformation system is used, for example, when the secondary device ismanufactured and/or when the secondary device is updated.

Alternatively or additionally, a user or administrator of the sensor andinformation system can generate templates from template components andtransmit them to the secondary device.

Alternatively or additionally, a user can generate templates fromtemplate components and transmit them to the secondary device by meansof an external computer system.

Incidentally, the characteristics and advantages of the secondary devicedescribed above also apply to the sensor and/or information system andvice versa.

One aspect of the disclosure provides that the sensor and/or informationsystem comprises at least one article of clothing, in particular a gloveor a wristband, the secondary device being fastened to the article ofclothing, in particular being fastened and removed in a repeatablemanner without tools. Accordingly, a user can wear the secondary deviceon the body, as a result of which it is always ready for use.

The main device may be a computer or a smart device. In particular, themain device can be a smart phone, a tablet, a laptop or even astationary computer. Accordingly, the typical computing power and memoryof such devices is available to the main device.

It is also conceivable that the main device is a server which can beaccessed in particular via an Internet connection, i.e. a so-calledcloud server.

Preferably, the main device generates the interpretation instruction, inparticular the identifier of one of the templates, and/or the textinformation based on the characteristics of the secondary device, inparticular the type, the location on the body, and/or thecharacteristics of the display of the secondary device. The main devicein particular generates the interpretation instruction, in particularthe identifier of one of the templates, and/or the text informationbased on a size of the display of the secondary device. For example, fordifferent display sizes, a different template may be respectively moreappropriate, which is taken into account by the main device whenselecting the template. In particular, the message to be displayed onlycontains at least a heading and/or a text to be transmitted. An exampleof such a message to be displayed is: “Component: Plastic tube,diameter: 5 cm”. In this example, “component” and “diameter” are theheadings, and “plastic pipe” and “5 cm” constitute the text to bedisplayed which is respectively associated with one of the headings.

The object is further achieved according to the disclosure by a methodof operating a sensor and/or information system, in particular for asensor and/or information system as described above. The sensor and/orinformation system includes at least one main device and at least onesecondary device with stored, predetermined interpretation instructions.The method comprises the following steps:

-   -   receiving or generating a message to be displayed by means of        the main device,    -   generating a display instruction based on the message to be        displayed by means of the main device, wherein the display        instruction contains at least one interpretation information and        at least one text information,    -   wirelessly transmitting the display instruction from the main        device to the secondary device,    -   generating a graphic presentation of the message using the        stored interpretation instructions based on the interpretation        information of the display instruction by means of the secondary        device, the graphic presentation containing the text        information, and    -   displaying the graphic presentation on a display of the        secondary device by means of the secondary device.

As to the advantages, reference is made to the above explanationsregarding the sensor and/or information system, which also apply to themethod of operating the sensor and/or information system.

In particular, the message contains at least a heading and/or a text tobe transmitted. An example of such a message to be displayed is:“Component: plastic tube, diameter: 5 cm”. In this example, “component”and “diameter” are the headings, and “plastic tube” and “5 cm”constitute the text to be displayed which is respectively associatedwith one of the headings.

Preferably, the display instruction is transmitted to the secondarydevice by means of a Bluetooth connection, in particular a Bluetooth LowEnergy connection. Bluetooth, in particular Bluetooth Low Energy,enables data to be exchanged in an energy-efficient manner, thusincreasing a battery life at least of the secondary devices.

One aspect of the disclosure provides that the predeterminedinterpretation instructions contain different templates each linked toan identifier, and that the interpretation information contains at leastone identifier of one of the templates, in particular wherein the maindevice generates the interpretation instruction, in particular theidentifier of one of the templates, and/or the text information based onthe characteristics of the secondary device, in particular the type, thelocation on the body, and/or the characteristics of the display of thesecondary device. In particular, the interpretation instruction, inparticular the identifier of one of the templates, and/or the textinformation are generated based on a size of the display of thesecondary device. For example, for different display sizes, a differenttemplate may be respectively more appropriate, which is taken intoaccount by the main device when selecting the template.

The display instruction generated by the main device, more precisely theinterpretation information, includes only the template identifier, notthe template itself. Accordingly, only the template identifier needs tobe transmitted from the main device to the secondary device, whichconsiderably reduces the amount of data to be transmitted and thus alsothe time needed for data transmission and data processing.

According to one aspect of the disclosure, the following further stepsare carried out: At least one template component is selected fromseveral template components which are different from each other, thetemplate components being stored on the main device and/or in a computersystem. In particular, the at least one template component is selectedbased on a user input. A template is generated based on the at least oneselected template component. An interpretation instruction is generatedfor the at least one secondary device based on the generated template.The interpretation instruction is transmitted to the at least onesecondary device.

In other words, new templates, which generally consist of severaltemplate components, can thus be created by a user, e.g. anadministrator, using the main device or the computer system, and can betransmitted to the secondary device. More precisely, the correspondinginterpretation instructions which belong to the new template(s) aretransmitted to the secondary device and are stored in the memorythereof.

In this way, a user, e.g. an administrator, can assemble a desiredtemplate from the various template components. The main device and/orthe computer system then automatically create(s) the appropriateinterpretation instructions for the secondary device.

The computer system is one or more computers, in particular servers,which can be connected to the main device.

A further aspect of the disclosure provides that the template isgenerated based on the characteristics of the at least one secondarydevice, in particular the type, location on the body, and/or thecharacteristics of the display of the secondary device, in particular asize of the display of the secondary device. In other words, the maindevice and/or the computer system automatically adapts the generatedtemplate to the respective secondary device. In particular, the maindevice generates the interpretation instruction, in particular theidentifier of one of the templates, and/or the text information based ona size of the secondary display. For example, for different displaysizes, a different template may be respectively more appropriate, whichis taken into account by the main device when selecting the template.

BRIEF DESCRIPTION OF THE DRAWINGS

Further advantages and characteristics of the disclosure will becomeapparent from the description below and from the attached drawings towhich reference is made and in which:

FIG. 1 shows a sensor and/or information system according to thedisclosure in an unworn condition;

FIG. 2 shows the sensor and/or information system of FIG. 1 while wornby a user;

FIG. 3 shows main and secondary devices of sensor and/or informationsystems according to FIG. 1 in appropriate charging stations;

FIG. 4 shows a flow chart of a method according to the disclosure;

FIG. 5A shows an example of a template,

FIG. 5B shows the template of FIG. 5A with inserted text information;and

FIGS. 6A to 6D show further examples of templates.

DETAILED DESCRIPTION

Lists having a plurality of alternatives connected by “and/or”, forexample “A, B and/or C” are to be understood to disclose an arbitrarycombination of the alternatives, i.e. the lists are to be read as “Aand/or B and/or C”. The same holds true for listings with more than twoitems.

FIG. 1 schematically shows a sensor and/or information system 10 whichhas a main device 12 and two secondary devices 14 as well as articles ofclothing, more precisely a glove 16 and a wristband 18.

The sensor and/or information system 10 is configured for industrial useand therefore has a corresponding robustness for continuous operation.

The main device 12 is a smart device, for example a smartphone, a tabletor even a laptop. Alternatively, the main device 12 can also be astationary device, in particular a stationary computer. It is alsopossible to use a cloud server as main device 12. The mentionedstationary main devices 12 are shown in FIG. 2 as dashed lines.

The main device 12 has a display 20, a camera 22, and a control unit 24.

The control unit 24 has a communication module 26. The communicationmodule 26 is, in general terms, configured to communicate wirelesslywith the secondary devices 14.

For example, the communication module 26 is configured to communicatewith the secondary devices 14 via Bluetooth, in particular Bluetooth LowEnergy, and/or via WLAN.

The control unit 24 has an operating system on which an application ofthe sensor and/or information system 10 is executed.

In the example embodiment shown, the sensor and/or information system 10has a first secondary device 14, which is a sensor module 28, and asecond secondary device 14, which is a display module 30.

The sensor module 28 has an optical reading unit 32, which is a barcodescanner in the example embodiment shown, and a display 34 and a controlunit 36 including a communication module 38.

The sensor module 28 has a battery or more precisely an accumulator forpower supply.

It is also conceivable that the sensor module 28 has other sensors, suchas an RFID reader, touch sensors or acceleration sensors in addition toor instead of the optical reading unit 32. The display module 30 canalso include such sensors.

In general, the control unit 36 of the sensor module 28 has considerablylower computing power and considerably lower memory capacity than thecontrol unit 24 of the main device 12.

In particular, the control unit 36 of the sensor module 28 is anembedded system. Thus, no complete operating system or similar isexecuted on the control unit 36 of the sensor module 28; rather, thecontrol unit 36 is configured to process received signals and dataaccording to fixed rules or algorithms.

The communication module 38 is configured to communicate wirelessly withthe main device 12, more precisely with the communication module 26 ofthe main device 12, preferably via Bluetooth, in particular BluetoothLow Energy, and/or via WLAN.

The sensor module 28 can be fastened to the body of a user U using theglove 16.

For this purpose, the glove 16 has a receptacle 40 in which the sensormodule 28 can be fastened and removed in a repeatable manner withouttools.

The glove 16 can also have an actuating element 42, for example a buttonfor the secondary device 14.

By means of cables 44 and contact elements 46 in the receptacle 40, theactuating element 42 is connected to the secondary device 14 as soon asit is inserted in the receptacle 40.

The display module 30 has a display 48 and a control unit 36 including acommunication module 38.

The display module 28 has a battery or more precisely an accumulator forpower supply.

In general, the control unit 36 of the display module 30 hasconsiderably less computing power and considerably less memory capacitythan the control unit 24 of the main device 12.

In particular, the control unit 36 of the display module 30 is anembedded system. Thus, no operating system or similar runs on thecontrol unit 36 of the display module 30; rather, the control unit 36 isconfigured to process received signals and data according to fixedrules.

The communication module 38 of the display module 30 is also configuredto communicate wirelessly with the main device 12, more precisely withthe communication module 26 of the main device 12, preferably viaBluetooth, in particular Bluetooth Low Energy, and/or via WLAN.

In addition, an actuating element 50 is provided on the display module30 to actuate the display module 30.

The display module 30 can be fastened to the body of the user U by meansof the wristband 18.

Alternatively or additionally, the sensor and/or information system caninclude at least one further secondary device 14, configured assmartglasses 51. In this case, the explanations as to the display module30 also apply except for the attachment to the body by means of thewristband 18.

In the case of the smartglasses 51, “display” is then to be understoodas an extended term, namely both as an self-illuminating screen in thearea of the lenses and as a projection device which projects an imageonto the lenses or directly onto the retina of the user U.

The secondary devices 14 are thus so-called “wearables”.

FIG. 2 shows the user U wearing the sensor and/or information system 10.

The user U is, for example, an assembly worker in production or alogistics employee in a warehouse.

At the beginning of a shift, the user U and each of his colleagues takea main device 12 and secondary devices 14 corresponding to his task fromthe corresponding charging stations.

FIG. 3 shows charging stations 52 for secondary devices 14 and maindevices 12, in which the main devices 12 and the secondary devices 14are inserted for charging.

At the end of each shift at the latest, the user U puts the secondarydevices 14 and the main device 12 back into the corresponding chargingstation 52.

In the charging station 52, the secondary devices 14 are not assigned toany of the main devices 12, so that the sensor and/or informationsystems 10 can be selected from any of the devices 12, 14. The user Ucan therefore take any main device 12 and any secondary devices 14suitable for his task.

In order to display information to the user, the sensor and/orinformation system 10 is configured to perform the method describedbelow with reference to FIG. 4.

In a preparatory step S0, templates are first defined and respectivelystored with a unique identifier on the secondary devices 14 asinterpretation instructions.

Generally speaking, each template is a sample template for a graphicpresentation of information on the respective display 34, 48 of thesecondary device 14 and any instructions for other measures, such as theoutput of optical, acoustic and/or haptic signals. A template containsat least one or more of the following information: the number of rowsand/or columns of the graphic presentation; the separation of individualcells by separating lines; the font size in the individual cells; theplacement of headings; the placement of the text to be displayed; and/orgraphical symbols and the arrangement thereof.

An example of such a template is shown in FIG. 5A. The template shownthere comprises two rows and two columns, i.e. a total of four cells,each separated from each other by separating lines.

Each of the four cells respectively comprises a heading, namely (Header1), (Header 2), (Header 3) or (Header 4), and a text to be displayed,namely (Text 1), (Text 2), (Text 3) or (Text 4). Further examples oftemplates are shown in FIGS. 6A to 6D, in which the wildcard charactersfor the text to be displayed are represented by number chains 12345 . .. .

The template of FIG. 6D also has a graphic symbol, in this case awarning triangle, which is placed at a specific position to give theuser a quickly understandable hint. The headline and text are arrangedappropriately around the symbol.

In addition, the templates can contain instructions for the secondarydevice 14 to emit an acoustic signal. For example, the acoustic signalmay be a tone or a sequence of different tones, in particular a beep.

Alternatively or additionally, the templates may contain instructionsfor the secondary device 14 to output an optical signal. In particular,the optical signal is a light, in particular a flashing light in one ormore colors.

Alternatively or additionally, the templates may contain instructionsfor the secondary device 14 to output a haptic signal. In particular,the haptic signal is a vibration of the secondary device 14.

For example, a template may contain the following combination ofinstructions to warn the user: emit a warning tone in the form ofseveral beeps, emit a flashing red light and vibrate. This is purelyexemplary. Depending on the situation, acoustic, optical and hapticsignals can be combined as desired.

In addition, an identifier, in the simplest case in the form of anumber, is assigned to each template.

The storage of the templates together with the identifiers on thesecondary devices 14 takes place, for example, during the manufacture ofthe secondary devices 14 or subsequently by a user of the sensor and/orinformation system 10.

The selection of which templates are to be used by the secondary devices14, i.e. which templates are to be stored on the secondary devices 14,can be made by a user, for example an administrator of the sensor and/orinformation system 10.

The user can for example select the templates from factory templatesand/or create own templates which correspond to special cases ofapplication in the user's operation.

To create an own template or to adapt a template, the user uses aneditor software on the main device 12 or a separate computer system inwhich template components are stored.

Examples of template components are different symbols, such as a stopsign, one line of text including a heading, different tone sequences,such as warning tones, different vibration patterns, different lightsequences of a light on the secondary device.

If the user wants to create a template for a warning message, forexample, he selects a stop sign, one line of text, a warning tone, aconcise vibration pattern and a rapid flashing of the light as templatecomponents. If necessary, he arranges the template components, in thiscase the stop sign and the line of text, according to his wishes.

The template is then generated from the selected template components andcontains, in addition to a graphic presentation, the desiredinstructions for the output of acoustic, optical and haptic signals.

The interpretation instruction is then generated from the templatespecifically for the respective secondary device 14 on which thetemplate is to be used. Among other things, a display size of therespective secondary device 14 is taken into account.

Accordingly, the interpretation instruction is adapted depending onwhether the secondary device 14 is a sensor module 14, a display module30 or smartglasses 51.

The user therefore does not have to worry about scaling and adaptationof the template to the various secondary devices 14, as the templatesare automatically adapted by the editor software.

The interpretation instruction is then transmitted to the correspondingsecondary device 14 and stored in the control unit thereof. Thetransmission can also take place wirelessly and during operation.

In this way, new templates can be created or existing templates can beadapted flexibly and at any time to meet the requirements of therespective operation.

In other words, new templates, which generally consist of severaltemplate components, can be created by the main device or by thecomputer system and be transmitted to the secondary unit. Moreprecisely, the corresponding interpretation instructions belonging tothe new template(s), including any audio files, are transmitted to thesecondary device and stored in the control unit 36 thereof.

The computer system is one or more computers, in particular servers,which can be connected to the main device 12 for data exchange.

However, it is also conceivable that the templates are updated forupdates of the secondary device 14, i.e. interpretation instructionsbelonging to new templates are stored in the secondary device 14 and/orinterpretation instructions belonging to old templates are adapted ordeleted.

Information about the characteristics of the templates is also stored inthe main device 12, more precisely in the application, at least theidentifier and information about how many headings and text can bedisplayed using the respective template. It is also conceivable that thecomplete templates are stored on the main device 12.

In the intended operation, a message to be displayed is generated orreceived by the main device 12 (step S1). For example, the main device12 receives the message to be displayed from a warehouse database orsimilar.

The message to be displayed contains at least a heading and a text to bedisplayed. An example of such a message to be displayed would be thefollowing message: “item: watermelon, number of pieces: 3; article:bananas, kg: 2”. In this example, “articles”, “number of pieces”,“articles” and “kg” are the headings, and “watermelon”, “3”, “bananas”and “2” constitute the text to be displayed which is respectivelyassociated with one of the headings.

Based on the generated or received message to be displayed, the maindevice 12 generates a display instruction containing at least oneinterpretation information and at least one text information (step S2).

The text information is one or more characters or character stringsrepresenting the text to be displayed. In the above example, the textinformation comprises the character strings “article”, “watermelon”,“number of pieces”, “3”, “article”, “bananas”, “kg” and “2”.

If necessary, the text information also includes one or more characterstring identifiers which indicate whether the respective characterstring is a heading or normal text to be displayed.

In step S2, the main device 12 automatically selects an appropriatetemplate suitable for displaying the message to be displayed based onspecific characteristics of the message to be displayed.

The specific characteristics include at least one or more of thefollowing: number of characters, number of words, number of headingsand/or number of lines.

In addition, the main device 12 can also select the template based onwhich of the secondary devices 14 should display the message. Forexample, the display 48 of the display module 30 is generally largerthan the display 34 of the sensor module 28, which is why a differenttemplate may be respectively better suited to display the same messageon the two secondary devices 14.

The identifier forms at least part of the interpretation information ofthe display instruction. The interpretation information thus comprisesthe identifier of one of several different templates to be used for thegraphic presentation of the message to be displayed. For example, theinterpretation information thus includes the information “Template #34”or only “34”, which means that the template with the identifier “#34” isto be used for the graphic presentation of the message to be displayed.

However, the display instruction generated by the main device 12, moreprecisely the interpretation information, only includes the templateidentifier mentioned above.

The interpretation information therefore does not include the templateitself or even an independent graphic representation in the form of animage file of any format, for example as jpg, png etc. Therefore, theinterpretation information does in particular not include the imageshown in FIG. 5B.

In summary, the display instruction only contains the templateidentifier and the text information. The display instruction is free ofindependent representations of graphical presentations, which is why theamount of data to be transmitted is small. For example, the displayinstruction contains—in addition to necessary protocol information—onlythe following text: “34; article; watermelon; number of pieces; 3;article; bananas; kg; 2”.

The display instruction is then transmitted wirelessly from thecommunication module 26 of the main device 12 to the communicationmodule 38 of the sensor module 28 and/or to the communication module 38of the display module 30 (step S3).

The control unit 36 of the secondary devices 14 receives the identifierof the template to be used along with the display instruction, so thatit is unambiguously defined which template is to be used by the controlunit 36 for the graphic presentation of the text information, and thengenerates a graphic presentation from the display instruction (step S4).

Due to the interpretation instruction, the control unit 36 knows how thetext information is formatted and how it has to be interpreted.

In the example, for Template #34, the control unit 36 expects textinformation in the format (Header 1); (Text 1); (Header 2); (Text 2);(Header 3); (Text 3); (Header 4); (Text 4) so that the text information“article; watermelon; number of pieces; 3; article; bananas; kg; 2” isinterpreted correctly.

Finally, the graphic presentation generated in step S4 is displayed onthe display 34 or 48 (step S5).

As a result of step S5, the text information contained in the displayinstruction is therefore displayed on the display 34 or 48, in thetemplate the identifier of which is contained in the displayinstruction. In the above example, FIG. 5B shows the result of step S5,i.e. the graphic presentation displayed on the display 34 or 48.

If the template, the identifier of which is contained in the displayinstruction, contains instructions for the secondary device 14 to outputacoustic, haptic and/or optical signals, these are also output inaddition to the presentation of the text information on the display 34or 48.

FIG. 5B shows the template of FIG. 5A, in which the above-mentionedexample of a message to be displayed is inserted, the headings and thetext to be displayed being each entered into the appropriate wildcardcharacters (Header i) and (Text j) with i,j∈{1, 2, 3, 4}.

In this way, the user is now shown information in a suitable graphicpresentation, the data required therefor, which had to be transmittedwirelessly, being however small. Accordingly, the computing powerrequired on the secondary device is also low, so that simple secondarydevices 14 can be used. In addition, a very long battery life isachieved for all devices 12, 14 due to the low data volume.

Furthermore, the creation and implementation of a template can becarried out independently of the secondary devices 14.

1. A secondary device for at least one of a sensor and informationsystem, including a display and a control unit, wherein predeterminedinterpretation instructions are stored in the control unit and thecontrol unit is configured to: wirelessly receive a display instructioncontaining at least one interpretation information and at least one textinformation, generate a graphic presentation containing the textinformation using the stored interpretation instructions on the basis ofthe interpretation information of the display instruction, and displaythe graphic presentation by means of the display.
 2. The secondarydevice according to claim 1, wherein the display instruction is free ofindependent representations of graphical presentations.
 3. The secondarydevice according to claim 2, wherein the interpretation information isfree of independent representations of graphical presentations.
 4. Thesecondary device according to claim 1, wherein the control unit is anembedded system.
 5. The secondary device according to claim 1, whereinthe interpretation instructions contain different templates which areeach linked to an identifier, and wherein the interpretation informationcontains at least one identifier of one of the templates.
 6. Thesecondary device according to claim 5, wherein the templates compriseinstructions for the output of at least one of acoustic, optical andhaptic signals.
 7. The secondary device according to claim 1, whereinthe at least one text information is or contains a character string. 8.The secondary device according to claim 1, wherein the control unit isconfigured to receive the text signal via a Bluetooth connection.
 9. Asystem including a main device and a secondary device, the secondarydevice including a display and a control unit, wherein predeterminedinterpretation instructions are stored in the control unit and thecontrol unit is configured to: wirelessly receive a display instructioncontaining at least one interpretation information and at least one textinformation, generate a graphic presentation containing the textinformation using the stored interpretation instructions on the basis ofthe interpretation information of the display instruction, and displaythe graphic presentation by means of the display; wherein the maindevice is configured to at least one of generate and receive at leastone message to be displayed, which is to be displayed on the secondarydevice, generate the display instruction with interpretation informationand text information on the basis of the message, and send the displayinstruction wirelessly to the secondary device.
 10. The system accordingto claim 9, wherein the system comprises at least one article ofclothing, wherein the secondary device is fastened to the article ofclothing.
 11. The system according to claim 10, wherein the article ofclothing is a glove or a wristband.
 12. The system according to claim 9,wherein the main device is a computer or a smart device.
 13. The systemaccording to claim 9, wherein the main device generates at least one ofthe interpretation instruction and the text information based on thecharacteristics of the secondary device.
 14. The system according toclaim 9, wherein the message to be displayed merely contains at leastone of a text and at least one heading to be transmitted.
 15. A methodof operating a system, the system including at least one main device andat least one secondary device with stored, predetermined interpretationinstructions, the method comprising the following steps: receiving orgenerating a message to be displayed by means of the main device,generating by means of the main device a display instruction based onthe message to be displayed, wherein the display instruction contains atleast one interpretation information and at least one text information,wirelessly transmitting the display instruction from the main device tothe secondary device, generating a graphic presentation of the messageusing the stored interpretation instructions based on the interpretationinformation of the display instruction by means of the secondary device,wherein the graphic presentation contains the text information, anddisplaying the graphic presentation on a display of the secondary deviceby means of the secondary device.
 16. The method according to claim 15,wherein the message contains at least one of a text and at least aheading to be transmitted.
 17. The method according to claim 15, whereinthe display instruction is transmitted to the secondary device by meansof a Bluetooth connection.
 18. The method according to claim 15, whereinthe predetermined interpretation instructions contain differenttemplates which are each linked to an identifier, and in that theinterpretation information contains at least one identifier of one ofthe templates.
 19. The method according to claim 15, comprising thefollowing steps: selecting at least one template component from aplurality of template components different from each other, wherein thetemplate components are at least one of stored on the main device andstored in a computer system; generating a template based on the at leastone selected template component; generating an interpretationinstruction for the at least one secondary device based on the generatedtemplate; and transmitting the interpretation instruction to the atleast one secondary device.
 20. The method according to claim 19,wherein the template is generated based on the characteristics of the atleast one secondary device.